- Industry: Telecommunications
- Number of terms: 29235
- Number of blossaries: 0
- Company Profile:
ATIS is the leading technical planning and standards development organization committed to the rapid development of global, market-driven standards for the information, entertainment and communications industry.
Um dispositivo analógico não-linear que tem um ganho menor em níveis mais elevados de entrada que em níveis mais baixos de entrada. Nota: um compressor é usado para permitir que os sinais com uma gama dinâmica grande para ser enviado por meio de dispositivos ou circuitos com uma menor gama dinâmica.
Industry:Telecommunications
A set of rules and formats (semantic and syntactic) that determines the communication behaviour of application entities in the performance of application functions.
Industry:Telecommunications
A high-speed multiplexing and switching method utilising fixed-length cells of 53 octets to support multiple types of traffic. Note: ATM, specified in international standards, is asynchronous in the sense that cells carrying user data need not be periodic.
Industry:Telecommunications
A method of routing traffic through a switching center, from local users or from other switching centers, whereby a connexion is established between the calling and called stations until the connexion is released by the called or calling station. 2. A process that, on demand, connects two or more data terminal equipments (DTEs) and permits the exclusive use of a data circuit between them until the connexion is released.
Industry:Telecommunications
An intranet that has been extended to include access to or from selected external organisations such as customers or suppliers, but not the general public. Note: connexions may be via leased lines, dial-up connections, or network interconnections. The overall network may be, but is not necessarily, a virtual private network.
Industry:Telecommunications
A domestic telecommunications network usually accessed by telephones, key telephone systems, private branch exchange trunks, and data arrangements. Note: Completion of the circuit between the call originator and call receiver in a PSTN requires network signalling in the form of dial pulses or multifrequency tones.
Industry:Telecommunications
A service in GSM mobile telephony systems that allows the user to send and receive short (maximum 160-character) messages independently of voice calls; a nearly real-time service that stores messages in message centres if the receiving mobile telephone cannot be contacted. Note: SMS is both the handset function and the network service. SMS is used to inform users of pending voice messages, network outages, etc. , but the principal use is in user-to-user messaging. Addressing is by telephone numbers (GSM only. ) Networks usually relay messages over network boundaries. There are gateways from e-mail and Web to SMS and from SMS to e-mail, but only on an experimental-service basis. The cost of SMS messages is usually fixed and is lower than for a short voice call.
Industry:Telecommunications
A protected information-system (IS) link utilising tunneling, security controls (see information assurance,) and end-point address translation giving the user the impression a dedicated line exists between nodes.
Industry:Telecommunications
